e70020e4f6
Summary: In T8216281 we decided to disable prefetching the index and filter during opening table handlers during startup (max_open_files = -1). Test Plan: Rely on `IndexAndFilterBlocksOfNewTableAddedToCache` to guarantee L0 indexes and filters are still cached and change `PinL0IndexAndFilterBlocksTest` to make sure other levels are not cached (maybe add one more test to test we don't cache other levels?) Reviewers: sdong, andrewkr Reviewed By: andrewkr Subscribers: andrewkr, dhruba Differential Revision: https://reviews.facebook.net/D59913
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
//
|
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
//
|
|
#pragma once
|
|
#include "rocksdb/env.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class TableCache;
|
|
class VersionStorageInfo;
|
|
class VersionEdit;
|
|
struct FileMetaData;
|
|
class InternalStats;
|
|
|
|
// A helper class so we can efficiently apply a whole sequence
|
|
// of edits to a particular state without creating intermediate
|
|
// Versions that contain full copies of the intermediate state.
|
|
class VersionBuilder {
|
|
public:
|
|
VersionBuilder(const EnvOptions& env_options, TableCache* table_cache,
|
|
VersionStorageInfo* base_vstorage, Logger* info_log = nullptr);
|
|
~VersionBuilder();
|
|
void CheckConsistency(VersionStorageInfo* vstorage);
|
|
void CheckConsistencyForDeletes(VersionEdit* edit, uint64_t number,
|
|
int level);
|
|
void Apply(VersionEdit* edit);
|
|
void SaveTo(VersionStorageInfo* vstorage);
|
|
void LoadTableHandlers(InternalStats* internal_stats, int max_threads,
|
|
bool prefetch_index_and_filter_in_cache);
|
|
void MaybeAddFile(VersionStorageInfo* vstorage, int level, FileMetaData* f);
|
|
|
|
private:
|
|
class Rep;
|
|
Rep* rep_;
|
|
};
|
|
|
|
extern bool NewestFirstBySeqNo(FileMetaData* a, FileMetaData* b);
|
|
} // namespace rocksdb
|